Motherboard on and off immediately after few second

When I power on my pc the motherboard fan on and off immediately

So I remove my ram and clean it very nicely but I am still having that problem

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Hi Uday Yelve

Possible to list down the specs on this?

like what power supply you used?

what mainboard you use?

what RAM and configuration did you use? e.g. single / dual channel.

what graphic card did you use?

what had you tried apart from removing the RAM?

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